Pith Number

pith:X7E66DMV

pith:2017:X7E66DMVOYPJM3HVYWRYGE7DQV

not attested not anchored not stored refs pending

The Calabi flow with rough initial data

Weiyong He, Yu Zeng

arxiv:1701.06943 v2 · 2017-01-24 · math.DG · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X7E66DMVOYPJM3HVYWRYGE7DQV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:50:09.075372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfc9ef0d95761e966cf5c5a38313e3854c0b85ee0c102eb112ba7393d7f9803e

Aliases

arxiv: 1701.06943 · arxiv_version: 1701.06943v2 · doi: 10.48550/arxiv.1701.06943 · pith_short_12: X7E66DMVOYPJ · pith_short_16: X7E66DMVOYPJM3HV · pith_short_8: X7E66DMV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/X7E66DMVOYPJM3HVYWRYGE7DQV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bfc9ef0d95761e966cf5c5a38313e3854c0b85ee0c102eb112ba7393d7f9803e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40d3c434e03063ac4375a32f5bde6caec2eca99ade687a577033f771b9e287d8",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-01-24T15:47:23Z",
    "title_canon_sha256": "af3a8755f88899170e03f65747b96b5b3e6553e16af51ac61513e7dcb6811704"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06943",
    "kind": "arxiv",
    "version": 2
  }
}